Finding the Fourth Proportional to 7,200.47, 9,937.92 and 5,719.69

Step by Step Solution

1. Step 1: Write the proportion equation
   7,200.47 : 9,937.92 = 5,719.69 : x
2. Step 2: Convert to fraction form
   7,200.47/9,937.92 = 5,719.69/x
3. Step 3: Cross multiply
   7,200.47x = 9,937.92 × 5,719.69
4. Step 4: Simplify right side
   7,200.47x = 56,841,855.52
5. Step 5: Solve for x
   x = 56,841,855.52/7,200.47
6. Step 6: Final answer
   x = 7,894.18